1 files changed, 66 insertions, 0 deletions
diff --git a/Source/Particles/ElementaryProcess/QEDPhotonEmission.cpp b/Source/Particles/ElementaryProcess/QEDPhotonEmission.cpp
new file mode 100644
index 000000000..6134ff542
--- /dev/null
+++ b/Source/Particles/ElementaryProcess/QEDPhotonEmission.cpp
@@ -0,0 +1,66 @@
+/* Copyright 2019-2020 Andrew Myers, Axel Huebl,
+ * Maxence Thevenet
+ *
+ * This file is part of WarpX.
+ *
+ * License: BSD-3-Clause-LBNL
+ */
+
+#include "WarpX.H"
+#include "Particles/ElementaryProcess/QEDPhotonEmission.H"
+
+PhotonEmissionTransformFunc::
+PhotonEmissionTransformFunc (QuantumSynchrotronGetOpticalDepth opt_depth_functor,
+                             int const opt_depth_runtime_comp,
+                             QuantumSynchrotronGeneratePhotonAndUpdateMomentum const emission_functor,
+                             const WarpXParIter& a_pti, int lev, int ngE,
+                             amrex::FArrayBox const& exfab,
+                             amrex::FArrayBox const& eyfab,
+                             amrex::FArrayBox const& ezfab,
+                             amrex::FArrayBox const& bxfab,
+                             amrex::FArrayBox const& byfab,
+                             amrex::FArrayBox const& bzfab,
+                             amrex::Array<amrex::Real,3> v_galilean,
+                             int a_offset)
+:m_opt_depth_functor{opt_depth_functor},
+ m_opt_depth_runtime_comp{opt_depth_runtime_comp},
+ m_emission_functor{emission_functor}
+{
+    m_get_position  = GetParticlePosition(a_pti, a_offset);
+    m_get_externalE = GetExternalEField  (a_pti, a_offset);
+    m_get_externalB = GetExternalBField  (a_pti, a_offset);
+
+    m_ex_arr = exfab.array();
+    m_ey_arr = eyfab.array();
+    m_ez_arr = ezfab.array();
+    m_bx_arr = bxfab.array();
+    m_by_arr = byfab.array();
+    m_bz_arr = bzfab.array();
+
+    m_ex_type = exfab.box().ixType();
+    m_ey_type = eyfab.box().ixType();
+    m_ez_type = ezfab.box().ixType();
+    m_bx_type = bxfab.box().ixType();
+    m_by_type = byfab.box().ixType();
+    m_bz_type = bzfab.box().ixType();
+
+    amrex::Box box = a_pti.tilebox();
+    box.grow(ngE);
+
+    const std::array<amrex::Real,3>& dx = WarpX::CellSize(std::max(lev, 0));
+    m_dx_arr = {dx[0], dx[1], dx[2]};
+
+    // Lower corner of tile box physical domain (take into account Galilean shift)
+    amrex::Real cur_time = WarpX::GetInstance().gett_new(lev);
+    const auto& time_of_last_gal_shift = WarpX::GetInstance().time_of_last_gal_shift;
+    amrex::Real time_shift = (cur_time - time_of_last_gal_shift);
+    amrex::Array<amrex::Real,3> galilean_shift = { v_galilean[0]*time_shift, v_galilean[1]*time_shift, v_galilean[2]*time_shift };
+    const std::array<amrex::Real, 3>& xyzmin = WarpX::LowerCorner(box, galilean_shift, lev);
+    m_xyzmin_arr = {xyzmin[0], xyzmin[1], xyzmin[2]};
+
+    m_l_lower_order_in_v = WarpX::l_lower_order_in_v;
+    m_nox = WarpX::nox;
+    m_n_rz_azimuthal_modes = WarpX::n_rz_azimuthal_modes;
+
+    m_lo = amrex::lbound(box);
+}